21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Concept explainers
Question
Chapter 23, Problem 1QP
To determine
The increasing order of the size of the celestial bodies.
Expert Solution & Answer
Answer to Problem 1QP
The correct order of size from smallest to largest is
Explanation of Solution
A star is considered to be the fundamental part of the galaxy. A star has several planets revolving around it and a collection of such several stars is considered to be the star clusters. This collection of the stars together forms a galaxy.
A galaxy is considered to be a huge collection of the star systems. The collection of the several galaxies maxes up a local group of the galaxies and several such small groups of the galaxies comprise of the super clusters of the galaxies.
The collection of the local group comprising of the Milky Way galaxy along with the other smaller local groups is termed as the Virgo super cluster and the Virgo super cluster is present in the Laniakea super cluster. The collection of the super cluster is termed as the walls.
Therefore, the correct increasing order of the size for the celestial bodies is a star, star clusters, a galaxy, the Local Group, Virgo Cluster, Laniakea and a wall.
Conclusion:
Thus, the correct order of size from smallest to largest is
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Our galaxy is suspected to be surrounded by a galactic corona because the disk of the galaxy
a.
rotates faster than expected in its outer region.
b.
rotates more slowly than expected in its outer region.
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rotates more slowly than expected in its inner region.
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infrared
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Chapter 23 Solutions
21st Century Astronomy
Ch. 23.1 - Prob. 23.1CYUCh. 23.2 - Prob. 23.2CYUCh. 23.3 - Prob. 23.3CYUCh. 23.4 - Prob. 23.4CYUCh. 23 - Prob. 1QPCh. 23 - Prob. 2QPCh. 23 - Prob. 3QPCh. 23 - Prob. 4QPCh. 23 - Prob. 5QPCh. 23 - Prob. 6QP
Ch. 23 - Prob. 7QPCh. 23 - Prob. 8QPCh. 23 - Prob. 9QPCh. 23 - Prob. 10QPCh. 23 - Prob. 11QPCh. 23 - Prob. 12QPCh. 23 - Prob. 13QPCh. 23 - Prob. 14QPCh. 23 - Prob. 15QPCh. 23 - Prob. 16QPCh. 23 - Prob. 17QPCh. 23 - Prob. 18QPCh. 23 - Prob. 19QPCh. 23 - Prob. 20QPCh. 23 - Prob. 21QPCh. 23 - Prob. 22QPCh. 23 - Prob. 23QPCh. 23 - Prob. 24QPCh. 23 - Prob. 25QPCh. 23 - Prob. 26QPCh. 23 - Prob. 27QPCh. 23 - Prob. 28QPCh. 23 - Prob. 29QPCh. 23 - Prob. 30QPCh. 23 - Prob. 31QPCh. 23 - Prob. 32QPCh. 23 - Prob. 33QPCh. 23 - Prob. 36QPCh. 23 - Prob. 37QPCh. 23 - Prob. 38QPCh. 23 - Prob. 45QP
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